TPI Corporation AFA / 3320 Series User manual

Form 9822 ECO # 1-7472 REV. 10-19-18
AFA / 3320 Series
1. LOCATION OF HEATER:
A. Heater is mounted on the wall near ceiling or oor, air ow down.
CAUTION: Do not obstruct the front grille of the heater with
 curtains,furniture,etc.,sincetheproperoperationoftheheaterrequires
 afreeowintakeandexhaustofair.
B. Minimum mounting height is 10” above nished oor and 8” from
adajacent walls.
C. ForsurfacemountinguseadapterAFAA/3320EX33.
D.Forsemi-recessedmounting,useadaptorAFAA-2/3320EX16.
2. BEFORE MOUNTING:
A.
Insurethatthesupplyvoltagematchesvoltageratingonthelabelof
the heater.
B. Turnoffelectricalpowertoheatercircuit.
3. MOUNTING INSTRUCTIONS:
A.Disassembleheaterbyremoving7screws“C”asshowninFigure1
 and2.
B. Flushmounting,seeFig.1.
Placerough-inbox“A”betweenstudsatdesiredheight: secure to
 studsthroughholes“M”.Theangesontherough-inboxmustreston
 the surface of the nished wall; if the box is installed prior to the
 appliation of the nished wall, allowance must be made for the wall
 thickness.
C.Surfacemounting,SeeFig.2.
 Insert rough-in box “A” into surface adapter “E”. Secure the heater
 rough-inboxto wall atdesiredheight through holes“X”.Be sure that
 theroughinboxiscenteredinsurfaceadapter.Forsurfacemounting,
 bringwiringthroughbottomknockout“K”only.
D.Semi-recessedmounting:Securerough-inboxsothatthelonganges
 extendawayfrom the nishedwallequal to thedepthof the adaptor.
 Bringserviceinthroughtoporbottomknockout“K”.E.Placeassembly
 “B”intorough-inbox“A”.Securewithsixscrews“C”.
WIRING INSTRUCTIONS REF: WD1, WD2, WD3, WD4, WD5, WD6
AND THREE PHASE UNITS
A. Bringserviceleadsthroughknockout“K”ontoporbottomofrough-in
boxforushorsemi-recessedmounting,bottomknockout“K”onlyfor
surfacemounting.Whenwiringfromthebottom,installwirethrough
cover“G”byremovingscrew“H” .
B. Attachserviceleadstotwoblackleadson208-240voltmodelsand
 to black and white leads on 120-277 volt models, 3-phase units are
 supplied with 3 black leads. Attach ground lead  to green wire with
approvedconnectors.Complywithallnationalandlocalcodes .
C. Attach wiring compartment cover “D” to assembly with screw “C”.
5. FINAL STEPS:
A. Clean all construction dirt and debris from inside heater.
B. Attachfrontgrille“F”withfourscrews“L”.
C. Placegrilleframeovertabsontopofgrille,snapbottominplace.For
addedsecurityinstallscrew“Q”intobottomofframe.
6. OPERATING INSTRUCTIONS:
A. Turnonpoweratthecircuitbreakerpanel.
B. Thermostatadjustmentismade byinsertingasmallbladescrew
driver through grille opening into slot in stem. Turn thermostat
adjustment stem fully clockwise, this will energize the heating
elementandaftera short delay, the fan shouldenergize,causing
warm air discharge from bottom of the grille.
C. Afterthedesiredtemperatureisreached,turnthermostatstem
counter clockwise until a click is heard from the thermostat .
D.
Models with double-pole thermostats: Turn thermostat adjustment
stem fully counter-clockwise, this will de-energize the heating
element and fan.
7. CLEANING AND MAINTENANCE INSTRUCTIONS:
A.
Atthebeginningofeachheatingseason,disconnectelectricalpower
 atcircuitbreakerpanel.Removefrontgrille.
B.
Use the narrow (crevice” suction attachment of the vacuum cleaner to
remove dust and lint from heater and heating element.
C. LubricatethemotorwithSAENo.10oil.Two(2)oilspoutsarelocated
 onfrontandbackofmotor.
D. Reinstallfrontgrillewithpreviouslyremovedscrews.Restorepowerto
the heater.
8"MIN.
203mm
8"MIN.
203mm
0"
10"MIN,
254mm
Wall Installation
INSTALLATION
INSTRUCTIONS
1
FIG. 1 FLUSH MOUNT
FIG. 2 SURFACE MOUNT
Note:Thisheateremploysavisual alarm (light) towarnthatparts of the
heater are getting excessively hot. If the alarm illuminates, immediately
disconnectpowerfromheaterandinspectforanyobjectsonoradjacentto
theheaterthatmaycausehightemperatures.DONOTOPERATEHEATER
WITHTHEALARM(LIGHT)ILLUMINATED.
NOTE: Three phase units do not have an alarm light, these units are
equipped with a manual reset limit control.
X
F
Y
L
10"OR(254)mm
MINIMUMTO
FINISHEDFLOOR
E
SERVICECABLE
ORCONDUIT
K
G
H
C
D
P
Q
191/2
(490.5mm)
141/8
(362mm)
10"OR(254)mm
MINIMUMTO
FINISHEDFLOOR
A
PLFC
D
Y
H
GK
Q

Form 9822 ECO # 1-7472 REV. 10-19-18
IMPORTANT INSTRUCTIONS
1. When using electrical appliances, basic precautions should always be followed to reduce the risk of re, electrical
shock,andinjurytopersons,includingthefollowing:
2. Readallinstructionsbeforeusingthisheater.
3. CAUTION: Hightemperatures.Keepcordsandallothercombustiblematerial,suchasfurniture,papers,clothes
andcurtainsawayfromtheheater.Forsafeandefcientoperation,keepanopenspacearoundheaterofthreefeetin
frontand12inchesatendsandrear.
4. Extremecautionisnecessarywhenanyheaterisusedbyornearchildrenorinvalidsandwhenevertheheaterisleft 
operatingandunattended.
5. Donotoperateanyheaterafteritmalfunctions,hasbeendroppedordamagedinanymanner.Returnheaterto
authorizedservicefacilityforexamination,electricalormechanicaladjustment,orrepair.
6. Do not use outdoors.
7. To disconnect heater, turn controls to off, and turn off power to heater circuit at main disconnect panel (or operate
internaldisconnectswitchifprovided).
8. Donotinsertorallowforeignobjectstoenteranyventilationorexhaustopeningasthismaycauseanelectricchockor
re,ordamagetheheater.
9. Topreventapossiblere,donotblockairintakesorexhaustinanymanner.
10. A  heater has hot and arcing or sparking parts inside. WARNING: Do not use it in area where gasoline, paint, or
ammableliquidsareusedorstored.
11. Usethisheateronlyasdescribedinthismanual.Anyotherusenotrecommendedbythemanufacturermaycausere,
electricshock,orinjurytopersons.
12. Thisheatermayincludeanaudibleorvisualalarmtowarnthatpartsoftheheateraregettingexcessively,hot.Ifthe
alarmsounds(orilluminates),immediatelyturntheheateroffandinspectforanyobjectsonoradjacenttotheheater
thatmayhaveblockedtheairoworotherwisecausedhightemperaturestohaveoccurred.DO NOT OPERATE THE
HEATER WITH THE ALARM SOUNDING (OR ILLUMINATING).
13. SAVE THESE INSTRUCTIONS
SWITCH LOCKOUT
Forswitchlockouthasp
or padlock thru bracket
as shown. Note:  Front
grille must remain off
duringlockout.
2

Form 9822 ECO # 1-7472 REV. 10-19-18
SET BACK T-STAT/CONTROL & POWER SUPPLIED BY OTHERS
MOTOR
THERMAL
PROTECTOR
FAN DELAY
ELEMENT
THERMOSTAT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT DISCONNECT
2
6
AB
4
DAY/
NIGHT
RELAY
MOTOR
THERMAL
PROTECTOR
FAN DELAY
ELEMENT
THERMOSTAT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT DISCONNECT
2
6
AB
4
DAY/
NIGHT
RELAY
SET BACK T-STAT/CONTROL & POWER SUPPLIED BY OTHERS
THERMOSTAT
FAN DELAY
ALARM
INDICATOR
LIGHT
THERMAL
PROTECTOR
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ELEMENT
MOTOR
DISCONNECT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT
THERMAL
PROTECTOR
FAN DELAY
MOTOR
ELEMENT
DISCONNECT
MOTOR
THERMAL
PROTECTOR
FAN DELAY
ELEMENT
THERMOSTAT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT DISCONNECT
THERMOSTAT
FAN DELAY
ALARM
INDICATOR
LIGHT
THERMAL
PROTECTOR
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ELEMENT
MOTOR
DISCONNECT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT
THERMAL
PROTECTOR
FAN DELAY
MOTOR
ELEMENT
DISCONNECT
MOTOR
THERMAL
PROTECTOR
FAN DELAY
ELEMENT
THERMOSTAT
120-277V WHITE
208-240V BLACK
LINE
BLACK
GND
ALARM
INDICATOR
LIGHT DISCONNECT
WD-1
WD-2
WD-3
WD-4
WD-5
WD-6
WD-7
WD-8
WD # MODEL # OPTIONS
WD-1
WD-2
WD-3
WD-4
Allmodelsexcept
E3321,HF3325
&HF3326
3320withDisconnectandDoublePoleThermostat
3320withDisconnect
3320withDisconnectandSinglePoleThermostat
3320withDisconnect,SinglePoleThermostatandDay/NightRelay
WD-5
WD-6
WD-7
WD-8
E3321,HF3325
&HF3326
3320withDisconnectandDoublePoleThermostat
3320withDisconnect
3320withDisconnectandSinglepoleThermostat
3320withDisconnect,SinglePoleThermostatandDay/NightRelay
IMPORTANT: OWNER SHOULD RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE
3

Form 9822 ECO # 1-7472 REV. 10-19-18
RELAY
L1
L2
L3
TOPOWER
SUPPLY
GND
OPTIONAL
DISCONNECT
SWITCH
THERMOSTAT
MOT
FAN DELAY
THERMALCUTOUT
HEATINGELEMENTS
4
THREEPHASEWIRINGDIAGRAM